Recently I decided to go off piste and try some different flatwound strings. My go-to type is D'Addario Chromes, once played in. I purchased the GHS Precision flats as I'd read that they were more vintage voiced than chromes, had a balanced feel and were less stiff than some popular flatwound types. What I'm finding seems to be the ultimate oxymoron. I've strung up my Mike Dirnt bass with the GHS Precisions, and they seem both high tension and loose, all at once. Is this possible? For example they seem to be putting a bit of tension on the neck, as there is now relief on the neck that it didn't have before. I currently have the truss rod nut adjusted as tightly as it will go; next stop is sticking washers behind the nut. Conversely I need to set the action pretty high to not run into fretting-out issues. Above the 12th fret seems a little rough on all strings, with notes consistently having that 'quacky' restricted quality I associate with too much neck relief. Notably the A string, and the D string to a lesser extent, slap off the last fret of the neck unless I'm really delicate with my right hand. While I appreciate the challenge of developing a light touch, when the slapping occurs I get a nasty plasticky attack to the notes. I'm wary because I'm recording more bass parts in January, and recording with a DI is brutal for picking up these things. Lastly, the G string just isn't happy unless I adjust it higher than the other strings in line with the radius of the neck. Because of the relief on the neck, as per above, the notes in the middle of the neck seem to have a blatty fret-out quality to them. Perhaps when the strings finally bed in this will all become tastefully muted and funky sounding, which brings me on to my next point. I've put about twenty hours on these strings, and they still haven't bedded in. How long does it take? For full disclosure, the bass is a 2008 Mexican Dirnt Bass with a newer Fender Badass II style bridge. The previous owner had the frets leveled and re-crowned and it arrived in my hands with a Gotoh 201 fitted, that I removed as the tail was lifting. I like a low action and a straight neck where possible.